Cannot restore table backup done using dynamodb-replicator

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I have executed command:
backup-table eu-west-1/ARTIFICIAL_APPLICANT_ID s3://some-s3

backup file is on the s3 but contains binary data not json

when I run
s3print s3://some-s3/ull/bba24099b07f53f5/0 | dyno import eu-west-1/TMP_ATSI_ARTIFICIAL_APPLICANT_ID

it says:
undefined:1
�
^

SyntaxError: Unexpected token in JSON at position 0
at JSON.parse ()
at Function.module.exports.deserialize (C:\Users\kamil.topolewski\AppData\Roaming\npm\node_modules\dyno\lib\serialization.js:49:18)
at Transform.Parser.parser._transform (C:\Users\kamil.topolewski\AppData\Roaming\npm\node_modules\dyno\bin\cli.js:94:25)
at Transform._read (_stream_transform.js:186:10)
at Transform._write (_stream_transform.js:174:12)
at doWrite (_stream_writable.js:387:12)
at writeOrBuffer (_stream_writable.js:373:5)
at Transform.Writable.write (_stream_writable.js:290:11)
at Stream.ondata (internal/streams/legacy.js:16:26)
at emitOne (events.js:116:13)
events.js:183
throw er; // Unhandled 'error' event
^

Error: write EPIPE
at _errnoException (util.js:1024:11)
at Socket._writeGeneric (net.js:767:25)
at Socket._write (net.js:786:8)
at doWrite (_stream_writable.js:387:12)
at writeOrBuffer (_stream_writable.js:373:5)
at Socket.Writable.write (_stream_writable.js:290:11)
at Socket.write (net.js:704:40)
at PassThrough.ondata (_stream_readable.js:639:20)
at emitOne (events.js:116:13)
at PassThrough.emit (events.js:211:7)

Reproduce the backup with `backup-table eu-west-1/ARTIFICIAL_APPLICANT_ID s3://some-s3`, then inspect the S3 object produced at the shown path and the `s3print | dyno import` pipeline. Determine why the backup contains binary data while `dyno import` expects JSON; done means a backup can be restored successfully through the documented commands.

Written by the indexing model from the issue text.